Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

===================================================================
RCS file: /ftp/cvs/cvsroot/src/lib/libc/ssp/stpncpy_chk.c,v
rcsdiff: /ftp/cvs/cvsroot/src/lib/libc/ssp/stpncpy_chk.c,v: warning: Unknown phrases like `commitid ...;' are present.
retrieving revision 1.2
retrieving revision 1.3
diff -u -p -r1.2 -r1.3
--- src/lib/libc/ssp/stpncpy_chk.c	2013/11/06 16:58:58	1.2
+++ src/lib/libc/ssp/stpncpy_chk.c	2015/05/09 15:42:21	1.3
@@ -1,4 +1,4 @@
-/*	$NetBSD: stpncpy_chk.c,v 1.2 2013/11/06 16:58:58 christos Exp $	*/
+/*	$NetBSD: stpncpy_chk.c,v 1.3 2015/05/09 15:42:21 christos Exp $	*/
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -29,7 +29,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: stpncpy_chk.c,v 1.2 2013/11/06 16:58:58 christos Exp $");
+__RCSID("$NetBSD: stpncpy_chk.c,v 1.3 2015/05/09 15:42:21 christos Exp $");
 
 /*LINTLIBRARY*/
 
@@ -49,5 +49,8 @@ __stpncpy_chk(char * __restrict dst, con
 	if (len > slen)
 		__chk_fail();
 
+	if (__ssp_overlap(src, dst, len))
+		__chk_fail();
+
 	return stpncpy(dst, src, len);
 }